Yes — winnertakesall.win has IPv6.

Has both IPv4 (A) and IPv6 (AAAA) addresses.

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 winnertakesall.win has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::6815:17d3 answers · 443✓ 2606:4700:3033::ac43:d5ad answers · 443	yes
Mail servers (MX) have IPv6 No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. piper.ns.cloudflare.com ✓rick.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.

https://winnertakesall.win/ via 2606:4700:3033::6815:17d3 → 302https://blue-field-93a7.cloudflareaccess.com/cdn-cgi/access/login/winnertakesall.win?kid=2f8224cac8628ba1e219124e3e702281cb1ec0b074fbf9bb266c9bb63fa85c3d&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjcxODEzMTdhMTM0NDQyMTE2OTBkYjFhMmM0OTEwOTE2YjU0ZmM0ZWJlMzFiZDhiYjdhYWQ4ZWM1NjFmM2I3YjQifQ.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.snNqNODVoL8yyraHfsmJs_oczg7Oet4-tBwDNC5bzGkSBMA9Gha5wioImlogc2buJyxBj5mTLtYqnD0HcLW-pS0dbMnbnMLA6wX0A9RwodwurYZaNHIGU9okfs6WEk6VqfCMgtEHZuMwdFH-eSqGRguDVfJWL1HCLI9KF5awfRNu2SpvhyjI5AZe8rBReMghXl-8IPWGF-y0-7U-OK9ZIDnML_ReJvx6bge-2JiHSRFUKsOt_1HVUBkYqY8ykSg4M8L16Wk7xfgzHJFG0aaCHuth4y4ikQpKovZz37CMjq1ae96kh2TA_BprpYUOJnOb2oiMN2a5MrtwzNULxckZAA&redirect_url=%2F via 2606:4700:300a::6813:c21d → 200

works

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/winnertakesall.win.svg)](https://aaaa.bot/winnertakesall.win)

Check again

winnertakesall.win Has IPv6

A (IPv4)	172.67.213.173 104.21.23.211
AAAA (IPv6)	2606:4700:3033::6815:17d3 2606:4700:3033::ac43:d5ad

Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).

Copy the evidence — a citation-ready record of this measurement

IPv6 measurement: winnertakesall.win
Measured 2026-11-02 10:00:50 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.213.173, 104.21.23.211
AAAA (IPv6): 2606:4700:3033::6815:17d3, 2606:4700:3033::ac43:d5ad

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: winnertakesall.win has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3033::6815:17d3: answers (TCP 443)
    2606:4700:3033::ac43:d5ad: answers (TCP 443)
- Mail servers (MX) have IPv6: No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.
- Nameservers have IPv6: 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.

Reachability = a TCP connection opened on port 443 (or 80).

HTTPS over IPv6 (not graded): Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
    https://winnertakesall.win/ via 2606:4700:3033::6815:17d3 -> HTTP 302, certificate: valid
    https://blue-field-93a7.cloudflareaccess.com/cdn-cgi/access/login/winnertakesall.win?kid=2f8224cac8628ba1e219124e3e702281cb1ec0b074fbf9bb266c9bb63fa85c3d&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjcxODEzMTdhMTM0NDQyMTE2OTBkYjFhMmM0OTEwOTE2YjU0ZmM0ZWJlMzFiZDhiYjdhYWQ4ZWM1NjFmM2I3YjQifQ.eyJ0eXBlIjoibWV0YSIsImF1ZCI6IjJmODIyNGNhYzg2MjhiYTFlMjE5MTI0ZTNlNzAyMjgxY2IxZWMwYjA3NGZiZjliYjI2NmM5YmI2M2ZhODVjM2QiLCJob3N0bmFtZSI6Indpbm5lcnRha2VzYWxsLndpbiIsInJlZGlyZWN0X3VybCI6Ii8iLCJzZXJ2aWNlX3Rva2VuX3N0YXR1cyI6ZmFsc2UsImlzX3dhcnAiOmZhbHNlLCJpc19nYXRld2F5IjpmYWxzZSwiZXhwIjoxNzkzNjEzOTUwLCJuYmYiOjE3OTM2MTM2NTAsImlhdCI6MTc5MzYxMzY1MCwiYXV0aF9zdGF0dXMiOiJOT05FIiwibXRsc19hdXRoIjp7ImNlcnRfaXNzdWVyX2RuIjoiIiwiY2VydF9zZXJpYWwiOiIiLCJjZXJ0X2lzc3Vlcl9za2kiOiIiLCJjZXJ0X3ByZXNlbnRlZCI6ZmFsc2UsImNvbW1vbl9uYW1lIjoiIiwiYXV0aF9zdGF0dXMiOiJOT05FIn0sInJlYWxfY291bnRyeSI6IlVTIiwiYXBwX3Nlc3Npb25faGFzaCI6IjE2YmFjNDQ1ZDNjZjM5MTk3ZjNlNjkxOWNjYWFjNmM0YjgxYTI1MmE0MDJlYTEyMmU4ZmJlOTg4YjQ5NGEwYjUifQ.snNqNODVoL8yyraHfsmJs_oczg7Oet4-tBwDNC5bzGkSBMA9Gha5wioImlogc2buJyxBj5mTLtYqnD0HcLW-pS0dbMnbnMLA6wX0A9RwodwurYZaNHIGU9okfs6WEk6VqfCMgtEHZuMwdFH-eSqGRguDVfJWL1HCLI9KF5awfRNu2SpvhyjI5AZe8rBReMghXl-8IPWGF-y0-7U-OK9ZIDnML_ReJvx6bge-2JiHSRFUKsOt_1HVUBkYqY8ykSg4M8L16Wk7xfgzHJFG0aaCHuth4y4ikQpKovZz37CMjq1ae96kh2TA_BprpYUOJnOb2oiMN2a5MrtwzNULxckZAA&redirect_url=%2F via 2606:4700:300a::6813:c21d -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/WBxJw1JCTk

Permanent link: aaaa.bot/r/WBxJw1JCTk · How we measure

Checked 2026-11-02 10:00:50 UTC. Full DNS report: dns.pizza/domain/winnertakesall.win · JSON: /api/v1/winnertakesall.win